| 초록 |
A bulk metallic glass-forming alloy, Ni59Zr20Ti16Si2Sn3 metallic glass powders was used for good commercial availability and good formability in supercooled liquid region. In this study, the porous Ni-based metallic glass was synthesized using by high pressure gas atomized metallic glass powders. In order to create a porous bulk metallic glass sample, the Ni59Zr20Ti16Si2Sn3 metallic glass powders was processed by dissolution of fugitive phase following warm extrusion with ball-milled Ni-based BMG with 40%vol Cu powders for 5 hours. The composites specimens were prepared by warm extrusion for the precursor of porous MG. The warm extrusion was performed at supercooled liquid region of Ni-based metallic glass. The amorphous structure of the final sample was characterized by SEM, X-ray diffraction, DSC, compressive test, and TEM analysis. |
